OpenNebula source code is available at GitHub. We use GitHub issues to track bugs and feature requests coming from the community. If you haven’t already, create a GitHub account and subscribe to the Community Forum. It is assumed that you’re willing to contribute new code or documentation under the Apache License 2.0.

Describe any changes to current interfaces including Sunstone, CLI and/or API

The issue will be used to track the discussions about the new feature. You should also specify if you are planing to allocate resources to implement the new feature. Once the new issue is created, you can bring it up for discussion on the Community Forum.

It is understood that your patch addresses an open issue to better track them. Update the issue with a full description of what you have done, describe your tests, and include a link to the Pull Request. When your patch is reviewed, it may be accepted “as-is” or you may be asked to make changes. Code commits (after review) will be implemented as named commits.

Important Notice about Licensing

Patches that fix a bug or provide a minor enhancement might be accepted without a Contributor License Agreement being completed. Major enhancements require a valid Contributor License Agreement.

How Can I Contribute New Functional Components?

Before entering a new issue following the Feature Request process, first check if there is already an open issue addressing a similar feature. Describe your work plan and the resources you are planning to allocate in the issue. Then you should bring it up for discussion on the Community Forum. Other developers may have suggestions, and this ensures that the new feature is aligned with the roadmap and other features being developed. It is important to be sure that you’re not doing redundant work.

New features can be:

Enhancements in the OpenNebula core distribution. These should be contributed by following the process to contribute feature patches.

New interfaces and drivers that extend platform support. New tools, interfaces and drivers that broaden the platform technologies and services that OpenNebula can interface with are published on the Add-ons catalog. These may be incorporated into the main OpenNebula distribution after an incubation process. Visit our Add-on section for more information about how to contribute new Add-ons or contribute to an existing Add-on

What Are Our Design Principles?

The OpenNebula technology is the result of many years of research and development in efficient and scalable management of virtual machines on large-scale distributed infrastructures. OpenNebula was designed to address the requirements of business use cases from leading companies and across multiple industries, such as Hosting, Telecom, eGovernment, Utility Computing… The main principles of OpenNebula’s design are:

Openness of the architecture, interfaces, and code

Flexibility to fit into any data center

Interoperability and portability to prevent vendor lock-in

Stability for use in production enterprise-class environments

Scalability for large scale infrastructures

SysAdmin-focus with complete control over the cloud

Simplicity, easy to deploy, operate and use

Lightness for high efficiency

Licensing and Copyright

Small patches which fix a bug or provide a minor enhancement might be accepted without a Contributor License Agreement being completed. These contributions do not add functionality or new intellectual property in its generally accepted sense, and so are too insubstantial to be protected by copyright. These patches need not have any copyright or license attached to them.

Significant patches which provide a major enhancement, and Add-ons incorporated into the OpenNebula distribution require the completion of a Contributor License Agreement. These contributions add functionality or new intellectual property in its generally accepted sense, and so have to be protected by copyright. These contributions must have a copyright attached to them. Before we can merge these contributions, you will need to read and agree to our Individual Contributor License Agreement. If you are contributing on behalf of a company, an authorized representative of your company should sign a Corporate Contributor License Agreement. You can send us a PDF version of the completed and signed agreement, or contact us to send you simple electronic forms through Echosign. All accepted contributions will be released as part of OpenNebula under the Apache v2.0 license.